jenna: china has a role in all of this as well? >> china has been backing both iran and north korea with regard to missiles and nukes. >> where can you point to as an example where sanctions have actually worked, when it comes to north korea or iran or anywhere? north korea is obviously still pursuing a very high-tech weapon. >> right. >> according to these reports they deny it. >> sure. >> to be fair when have sanctions really worked? worked5 and 2007 with regard to those financial sanctions i talked about. of course they also worked with south africa which is the prime example. they probably also worked with regard to yugoslavia when the country was going through some problems. sanctions can have an effect. not enough on their own but when you do that with other diplomacy, yeah, they can have a lot of effect on these regimes. iran right now is reeling because of the financial sanctions that the u.s. imposed on the central bank of iran. jenna: that is what many say. the big question do we see them test a nuclear weapon in the next